tree 08fd24ea5449cfe169a1041f42eb978fd552c7b1
parent 5ba8adf338fdb9e070007bdf08174b43654615ca
author Samuel Tan <samueltan@chromium.org> 1429238207 -0700
committer ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> 1429299503 +0000

build_library: mount ext2 filesystem with ext_attr feature

Mount the ext2 filesystem with the extended attributes feature so that file
capabilities can be used. This will allow us to use file capilities to replace
setuid binaries.

BUG=chromium:223953
TEST=Build and boot an image.
1) Mount fs as read/write using make_dev_ssd.sh
2) Run 'sudo getcap /bin/ping' and verify that no output is returned.
3) Run 'sudo setcap cap_net_raw=ep /bin/ping'.
4) Run 'sudo getcap /bin/ping' again and verify that /bin/ping now has the
   cap_net_raw=ep file capability set.

Change-Id: I310d5b64547a3946d852833d87988a10c86bb948
Reviewed-on: https://chromium-review.googlesource.com/266068
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Commit-Queue: Samuel Tan <samueltan@chromium.org>
Tested-by: Samuel Tan <samueltan@chromium.org>